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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Physica E Low-dimens...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Physica E Low-dimensional Systems and Nanostructures
Article . 2003 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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Fractionally charged quasiparticles

Authors: M. Heiblum;

Fractionally charged quasiparticles

Abstract

Fractionally charged quasiparticles were proposed by Laughlin to explain the fractional quantum Hall effect. Flowing in one-dimensional-like strips along the edges of the sample the quasiparticles are expected to condenseto a chiral Luttinger liquid (CLL). Adding a backscattering impurity in the path of the quasiparticles induces correlation among the scattering events at sufficiently low temperatures, hence leading to highly non-linear I-V characteristic and non-Poissonian shot noise. Moreover, a sufficiently strong backscatterer induces bunching of the backscattered quasiparticles with a super Poissonian shot noise corresponding to stochastic transfer of electrons. Diluting the impinging quasiparticle beam mimics an increased temperature. For example, correlation among scattering events in dilute beams relaxes and bunching ceased altogether. At finite temperature and fractionally charged quasiparticles are found to traverse almost opaque barriers. Turning to the extremely low-temperature regime (∼9 mK) we found unexpected results. At higher order fractions, v = p/m with p> 1, and very weak backscattering potential a spontaneous bunching of quasiparticles to q = ve took place, namely, at v = 2/5, q = 2e/5 and at v = 3/7, q∼3e/7. As the temperature increases bunching ceased and the scattered charge was again the familiar Laughlin's quasiparticle q = e/m independent of p.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
5
Average
Average
Average
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